The iPhone 5 went on sale in China on December 14. Apple announced over the weekend that in only three days after that launch it has sold 2 million iPhone 5 smartphones. Apple also reasserted that the iPhone 5 would be available in more than 100 countries by the end of December marking the fastest iPhone rollout ever.

“Customer response to iPhone 5 in China has been incredible, setting a new record with the best first weekend sales ever in China,” said Tim Cook, Apple’s CEO. “China is a very important market for us and customers there cannot wait to get their hands on Apple products.”

Despite the successful rollout, Apple shares fell 3.8% in trading on Friday after the iPhone 5 debuted in China. Citi Research downgraded Apple stock from "buy" to "neutral" and lowered Apple's price target from $675 to $575.

Citi Research blamed diminishing hype for the iPhone 5 and improving competition in the smartphone market.

Classically (English usage back a few decades or more) the "proper" way to list plurals of numbers was with an " 's ". Yes, it was with an apostrophe. Every other variant was considered "improper".

Starting in the late '70s or early '80s the standard, "proper" form changed to the apostrophe being optional.

More recently common usage without the apostrophe seems to be winning out. I'd expect within the next decade or so that the standards (Chicago Manual of Style, Harbrace, Strunk & White, etc.) will all agree that the "proper" form will be without the apostrophe. Until the, either with or without is "proper".